Chair back component



FIG. 1 is a front perspective view of a chair back component showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is left side elevational view thereof; and,

FIG. 8 is a rear elevational view thereof. 

The ornamental design for a chair back component, as shown and described. 